"hair color is darker during which stage of growth?"

Answers

Answer 1
The stages of air growth is divided into three, which are anagen, catagen and telogen. During the anagen phase, the hair grows continuously and at this stage the color of the hair is darker. The stages occurs in a circle and the anagen phase is the first stage. 
Answer 2

Hair color is darkest during the [Option b] anagen phase of hair growth due to high levels of melanin production.

Rapid cell division at the hair's root actively pushes the hair shaft upward and out during this phase. The pigment that gives hair its color, melanin, is produced in large quantities by the hair follicles during this phase, which can last anywhere from two to seven years. During the anagen phase, melanin production is high, which causes hair to appear darker. Catagen and telogen, on the other hand, are not associated with active pigment production. The catagen phase is a brief transitional period that lasts between two and three weeks, while the telogen phase is a resting period that lasts between two and four months. During the telogen phase, pigment production stops and hair does not grow.

Complete question:

"Hair color is darker during which stage of growth?"

a) resting b) anagen c) catagen d) telogen


Related Questions

An endoplasmic reticulum is rough or smooth, depending on the presence of
A. a nuclear membrane.
B. mitochondria.
C. ribosomes.
D. proteins.

Answers

C. ribosomes.
Presence of ribosomes makes endoplasmic reticulum look rough.

Answer:

(C). ribosomes.

Explanation:

The ER (endoplasmic reticulum) can be defined as an eukaryotic cell organelle, which makes interconnected network of membrane-bound, flattened sac-like structures. These structures are known as cisternae

The endoplasmic reticulum can be divided into two types, on the basis of presence or absence of ribosomes. The smooth ER does not ribosomes on its surface, while rough ER carries ribosomes on its surface. These ribosomes are known as protein-manufacturing units of cells.

Thus, the correct answer is option (C).

Bias can occur in sampling. bias refers to

Answers



Bias can happen in sampling. The propensity of a sample statistic to systematically under- or over-approximate a population is referred to as bias.

 

 

To add, in statistics, sampling bias is a bias in which a sample is collected in such a way that some members of the intended population are less likely to be included than others.

 

The following are some types of biases in Statistics:

 

Selection bias includes individuals being more likely to be chosen for study than others, biasing the sample. This can also be termed Berksonian bias

 

In statistical hypothesis testing, a test is said to be unbiased if for some alpha level (between 0 and 1), the probability the null is not accepted is less than or equal to the alpha level for the entire parameter space defined by the null hypothesis, while the probability the null is rejected is greater than or equal to the alpha level for the entire criterion space interpreted by the alternate hypothesis.

Bias in sampling refers to any tendency that prevents unprejudiced consideration of a question. In the context of surveys and sampling, bias can occur due to the wording of questions, the methodology of data collection, or the self-selection of survey respondents. For example, an internet survey might be biased if only certain groups of people choose to respond, or a question in a survey about organic food might elicit biased responses due to its phrasing.

Bias can significantly alter the outcomes of a survey or poll and thus needs to be minimized to ensure more accurate results. For instance, Kenneth Rasinky noted that the use of terms such as "assistance to the poor" instead of "welfare" can cause respondents to indicate stronger support, despite the terms having the same meaning. The selection of respondents (like with internet surveys) can also lead to bias if the sample is not representative of the population. In addition, crafting questions in a survey is crucial as biased questions might lead respondents toward a specific answer, like the flawed example of proving chocolate ice cream's popularity by asking respondents if they simply like the flavor. A more neutral and comprehensive approach in both language and methodology is necessary to reduce bias in surveys.

Name the functional group that links two monosaccharides in a disaccharide

Answers

Final answer:

A glycosidic bond is the functional group that links two monosaccharides in a disaccharide. This bond is formed through a dehydration synthesis reaction between two monosaccharides. Examples of substances formed this way include sucrose, lactose, and maltose.

Explanation:

The functional group that links two monosaccharides in a disaccharide is called a glycosidic bond. This bond is formed when two monosaccharides undergo a dehydration synthesis or dehydration reaction. During this reaction, the hydroxyl group of one monosaccharide combines with a hydrogen atom of another monosaccharide. This process releases a water molecule and forms a covalent bond known as a glycosidic bond, linking the two sugar molecules. Important examples of disaccharides include sucrose, lactose, and maltose, each consisting of specific monosaccharides linked through glycosidic bonds.

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for what reasons would a eukaryotic cell evolve an endoplasmic reticulum and a golgi apparatus?

Answers

The domain containing all organisms with eukaryotic cells is the Domain Eukarya. There are only three domains; the Archaea, Bacteria and Eukarya. Domain Eukarya came from the first prokaryotic cells billions of years ago. In the cytoplasm, ribsomal RNA (rRNA), a type of RNA, and protein combine to form a nucleoprotein called a ribosome. The ribosome serves as the site and carries the enzymes necessary for protein synthesis. They are often takes the shape of small round particles attached in the endoplasmic reticulum. The ribosome attaches itself to m-RNA and provides the stabilizing structure to hold all substances in position as the protein is synthesized. Several ribosomes may be attached to a single RNA at any time

Suppose two students were experimenting with yeast to study cellular respiration. One student found glucose to be the most efficiently consumed sugar by yeast, whereas the other student found maltose to be the most efficiently consumed sugar by yeast. Which of the following could explain the results

A.Neither of the two answer choices could explain the results.
B.Different organisms process food sources differently due to the availability of food and other environmental conditions. The students may have used different yeast strains.
C.Either of the two answer choices could explain the results.
D.Organisms have varying optimal conditions at which they work the best. The students may have used different temperatures or pH levels for their individual experiments.

Answers

The correct option is D. Organisms work best at their optimum temperature and pH, above and below these temperature they will not be able to function as expected. It is possible that the students above use different temperature and pH when they were carrying out their experiments, this will result in different efficiency rate by the yeasts.

In William Blake's poem "The Chimney Sweeper," the metaphor "coffins of black" represents___.

A. Innocence
B. Chimneys
C. Daffodils
D. The Tiger

Answers

it represents innocence, since the speaker in the poem is sold as a slave.

When a person removes co2 from the lungs by exhaling, the person also removes __________ from the blood?

Answers

I think the correct term would be carbon dioxide. When a person removes co2 from the lungs by exhaling, the person also removes carbon dioxide from the blood. As the blood flows in the lungs, carbon dioxide would pass out from the blood and by diffusion to the alveoli. Then, by exhaling it is removed from the the lungs.
Final answer:

When a person removes CO2 from the lungs by exhaling, they also remove carbon dioxide from the blood.

Explanation:

When a person removes CO2 from the lungs by exhaling, they also remove carbon dioxide from the blood. Carbon dioxide is transported in the blood from body tissues to the lungs by several methods, including dissolution directly into the blood, binding to hemoglobin, or being carried as a bicarbonate ion. When the blood reaches the lungs, the dissolved carbon dioxide diffuses across the respiratory membrane into the alveoli, where it is then exhaled during pulmonary ventilation.

When a slice of fresh apple turns a brown color, this is most likely the result of ________?

Answers

This is most likely the result of OXIDATION. When an apple is cut open, the cells of the apple are exposed to the atmosphere, the in built defense mechanism inside the apple that is supervised by certain enzymes react to this situation by reacting with oxygen and creating an oxidized brown layer which protects the apple from foreign bodies.

"what are the two major unix system versions?"

Answers

The two major UNIX system versions are the UNIX System V and the AT&T UNIX. UNIX System V is the evolutionary outcome of a developmental project at the AT&T Bell Laboratories. BSD UNIX is a subsidiary version, which began with an early spread of AT&T UNIX by computer science students at the University of California at Berkeley.

Final answer:

The two major versions of UNIX are BSD, which is known for its fast filesystem and TCP/IP network stack, and System V, which is known for its support for multiple processors and an easier to navigate file system hierarchy.

Explanation:

The two major UNIX system versions are BSD (Berkeley Software Distribution) and System V. Both of these versions have influenced the development and evolution of Unix and Linux operating systems over the years.

BSD is derived from the version of UNIX developed at the University of California, Berkeley. It is known for its TCP/IP network stack and the fast filesystem. It has further evolved into systems like FreeBSD, OpenBSD, and NetBSD.

On the other hand, System V is derived from the version of UNIX that was developed by AT&T. This version introduced features like support for multiple processors and a file system hierarchy that was easier to navigate. It has influenced the creation of modern Unix systems like AIX, HP-UX, and Solaris.

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An animal with a rigid backbone would belong to which phylum?

Answers

An animal with a rigid backbone would belong to CHORDATA


A 43-year-old female presents to the physician for an ulcer of the right ankle. patient also has diabetes mellitus. what icd-10-cm code(s) should be reported?

Answers

The icd-10-cm codes that should be reported are 707.13 and 250.00.

 

To add, in the ICD-9-CM Index to Diseases, look for Ulcer/lower extremity/ankle which refers you to code 707.13. Under subcategory code 707.1, there is a note: Code, if applicable, any casual condition first. The scenario does not have a causal relationship between the ulcer and diabetes (example, ulcer due to the diabetes). The two codes will be coded separately. The code for a diabetic manifestation is not reported because there is no causal relationship. Look in the Index to Diseases for Diabetes, diabetic 250.0x. In the Tabular List, a fifth digit of 0 is selected for diabetes with no mention of complication.

Which animal would display a j-shaped curve for its rate of oxygen consumption relative to its speed? sockeye salmon ground squirrel kangaroo bird?

Answers

i think it is Sockeye salmon
I think it is a kagaroo bird!

If a dihybrid F1 plant is self fertilized, what proportion of progeny will have the same phenotype as the F1 parent? What proportion will be true-breeding? What proportion will be heterozygous at one or both loci?

Answers

 If a dihybrid F1 plant, self-fertilizes, the F2 progeny will have two types of phenotypes. One would be the dominant trait phenotype for both the alleles, which would be possessed by 3/4th of the population.
Other would be recessive trait phenotype for both the alleles, which would be possessed by 1/4th of the population. 
One fourth of the population would be true-breeding for the dominant traits.
Half of the population would be heterozygous for both traits and would have dominant phenotype
Rest one-fourth population would be homozygous for both recessive traits

Sleep reactivates recent experiences stored in the ________ and shifts them for permanent storage in the cortex.

Answers

Sleep reactivates recent experiences stored in the hippocampus and shifts them for permanent storage in the cortex. The hioppocampus is the portion of the brain that is responsible of storing of the long-term memory which would include the experiences and the pas t knowledge. It is located in the medial temporal lobe of the brain. As one sleeps, the brain would sort of replay everything that happened that day. At this time, the hippocampus and the neocortex would communicate with each other to make and store those memories. From researches, it was said that the activity of the hippocampus would increase when an individual is in a slow-wave sleep.


Which of the following is NOT a function of mycorrhizae?
a. assemble amino acids
b. increase water and mineral uptake
c. break down organic materials
d. none of the above

Answers

A. assemble amino acids

Mycorrhizae are fungal colonies that are in a mutualistic relationship with plants. These fungi help the plant absorb more nutrients and water from the soil, while the plant provides the fungus with carbohydrates that it generates through the process of photosynthesis. Mycorrhizae do not carry out the assimilation of amino acids, this is a process carried out the plant by itself.

What is the flaw of biological frameworks for sexuality?

Answers

One of the biological frameworks is gender essentialism which bases the gender of an individual on biology. The flaw to this framework is that not all individuals can be categorized as either female or male based on their biological features alone. Human biology is not perfect and some are born with two sex organs. "Sex change" is also now possible by removing and replacing reproductive organs. With these, it becomes difficult to determine the sexuality of an individual.

A certain drug causes liver damage in2%of patients. suppose the drug is to be tested on 500patients. letxrepresent the number of patients who take the drug and end up with liver damage.

Answers

10 patients end up with liver damage
   500*.02= 10

Which preservative has been found to be potentially carcinogenic in animals?

Answers

The answer to this question is nitrates. Nitrate is a compound that is composed of nitrogen and oxygen. Nitrates are used as a preservatives in food, can be used as fertilizer, an ingredient to make gunpowder, and also an ingredient in making explosives or bomb.

what are the main purposes of mitosis? list the main reason why an organisms cells would undergo this process

Answers

It is to replace old, worn out cells.
One single cell divides to two, etc. etc.

Hemoglobin is a protein in red blood cells that binds to oxygen. which physiological changes that naturally occur in the body reduce hemoglobin\'s affinity for oxygen?

Answers

Final answer:

Hemoglobin's affinity for oxygen decreases with higher carbon dioxide levels and lower blood pH, higher body temperatures, and in conditions like sickle cell anemia and thalassemia, which alter the red blood cells' structure or hemoglobin content.

Explanation:

Hemoglobin's affinity for oxygen can be reduced by several physiological changes in the body. High levels of carbon dioxide (CO2) lead to increased production of hydrogen ions, which decreases blood pH. This condition, known as acidosis, causes oxygen to dissociate more readily from hemoglobin, shifting the oxygen dissociation curve to the right. Similarly, an increase in body temperature, often a result of increased muscular activity, also reduces hemoglobin's affinity for oxygen. Certain diseases, such as sickle cell anemia and thalassemia, negatively affect red blood cells' shape or hemoglobin levels, thereby reducing their oxygen-carrying capacity.

in 1986 several robotic spacecrafts were sent into space to study the halleys comet. Which of these statements best explains why humans should continue to send robotic spacecrafts into space?

A) they absorb harmful radiations in space
B) they help change weather conditions on earth
C) they help discard some myths about objects in space
D) they destroy meteors and comets which might strike earth

Answers

Answer:

C) they help discard some myths about objects in space

Explanation:

This is the only one on this list that would be possible currently.

What advantage do you think a protist would gain by having a unicellular, filamentous, or colonial form?

Answers

By having a unicellular form, a protist will gain two major advantage:
1. It would be able to reproduce on its own, asexually without having to look for sexual partners. It will be able to reproduce by binary fission, multiple fission or budding.
2. It will benefit from a simple body system that does not need system specialization. Having specialized systems with many parts can results in some of the system having problems at times.

Final answer:

Protists can gain advantages such as efficient nutrient absorption, attachment to substrates, and division of labor by having different forms like unicellular, filamentous, or colonial.

Explanation:

A protist can gain several advantages by having different forms such as unicellular, filamentous, or colonial.

Unicellular protists have a higher surface area to volume ratio, which allows for efficient nutrient absorption and waste elimination. They can also reproduce quickly and adapt to changing environmental conditions.

Filamentous protists, like bacteria, can form long chains of cells that enable them to colonize surfaces and attach to substrates. This helps them access resources and form protective barriers.

Colonial protists can benefit from collective behavior and division of labor within the colony. Some cells can specialize in reproduction, while others carry out specific functions like locomotion or feeding.

Indicate what develops when abnormal cells divide and create other abnormal cells:

Answers

Oncogenes are the abnormal cells that divide and create another abnormal cells. When abnormal cell division occurs, tumor may be developed. When a tumor is considered cancerous, it is called. malignant.  Benignant on the other hand is the tumor that it's not dangerous and not cancerous.

How can the order of three linked genes (a, b, and

c.on the same chromosome be determined?

Answers

C it's correct the answer

Which of the following is a true difference between prokaryotic and eukaryotic cells?
A. Eukaryotic cells are smaller
B. Eukaryotic cells are more ancient
C. Eukaryotic cells are less complex
D. Eukaryotic cells have true nuclei

Answers

D. Eukaryotic cells have true nuclei

How does ATP supply energy for cellular activities?

Answers

ATP releases energy by breaking down the weak phosphate cell present.  The energy released due to the breaking down of the phosphate cell is then utilized. The ATP is converted to ADP. When a cell feels the necessity for energy it releases a phosphate to gather the energy. It is an automatic and ongoing process. 
First of all 
1) The cellular activities are provided by adenosine triphosphate molecules 
2) ATP is one of the adenosine  molecules, out of three phosphate groups.
3) The energy can be released by breaking down the ATP adenosine diphosphate also known as ADP 

Hope this help :) 

Is a fat replacer used in food processing that can bind to fat-soluble vitamins and thereby reduce their absorption?

Answers

OLESTRA is a fat replacer used in food processing that can bind to fat soluble vitamins and thereby reduce their absorption. As a fat substitute, olestra does not add fat, calories or cholesterol to products. It is normally used in the preparation of high fat foods in order to lower their fat contents. 

Which of the following organs is not part of the alimentary canal?

Answers

The alimentary canal of the body consists of the organs through which food passes. Namely, these organs are the mouth, pharynx, esophagus, stomach, small intestine, large intestine and the rectum. The organs are listed in order by which food passes through them.

Other organs work in conjunction with these organs to assist the digestion of foods. For example, the liver, gall bladder and pancreas all provide substances such as enzymes to help digest the food that is present in the alimentary canal, but they themselves are not part of the canal.
Final answer:

The alimentary canal includes the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. Accessory organs like the teeth, tongue, salivary glands, liver, pancreas, and gallbladder, while vital to digestion, are not part of the alimentary canal.

Explanation:

The organs that make up the alimentary canal include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. On the other hand, accessory structures or accessory digestive organs, which aid in the breakdown of food but are not part of the alimentary canal, include the teeth, tongue, salivary glands, liver, pancreas, and gallbladder. Therefore, the following organs are not part of the alimentary canal: teeth, tongue, salivary glands, liver, pancreas, and gallbladder.

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The ________ of exercise determines whether carbohydrates or fat is the predominant source of energy production

Answers

The correct term to fill in the blank would be intensity. The intensity of exercise determines whether carbohydrates or fat is the predominant source of energy production. During high-intensity workouts, it is the fat that is used as the source of energy production while low-intensity exercises would only use the carbohydrates present for energy.

Exercise intensity dictates whether the body uses carbohydrates or fat as its main energy source, with low-intensity exercise favoring fat and high-intensity exercise favoring carbohydrates due to the aerobic and anaerobic metabolic pathways involved.

The exercise intensity determines whether carbohydrates or fat is the predominant source of energy production. During low-intensity activities, the body primarily uses aerobic metabolism, which is efficient at producing large amounts of ATP, and fat is the primary energy source. For high-intensity activities, where more ATP is needed quickly, the muscles rely on both anaerobic and aerobic metabolism, with carbohydrates being consumed more rapidly for immediate energy.

Fatty acids are favored during low-intensity exercise due to their abundant storage in the body, while glucose is primarily used during high-intensity activity, which relies more on anaerobic metabolism due to the limited oxygen available. However, the body's glycogen stores (from which glucose is derived) can be depleted, leading to fatigue.

It's important to note that even though fat reserves provide a more substantial energy source for prolonged exercise, carbohydrates are still utilized and are essential for shorter, more explosive movements where quick energy is necessary.

Why are antimicrobial drugs of limited usefulness in bacillus anthracis infections?

Answers

Antimicrobial drugs are of limited usefulness because MOST STRAIN OF B. ANTHRACIS ARE RESISTANT TO A WIDE VARIETY OF ANTIMICROBIAL DRUGS. Bacillus anthracis is gram positive bacteria which exists in two forms; vegetable and spores form. It is an agent of bio-warfare because of its ability to kill quickly. 
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